Installation

Requirements

• Rust 1.70+ (for building from source)
• Cargo (comes with Rust)

Install from Crates.io

cargo install lumen-lang

Build from Source

git clone https://github.com/alliecatowo/lumen.git
cd lumen
cargo build --release

The binary will be at target/release/lumen. Add it to your PATH:

export PATH="$PATH:$(pwd)/target/release"

Verify Installation

lumen --version

Editor Support

VS Code

Install the Lumen extension from Open VSX:

# Via command line if you use code-server or compatible editors
code --install-extension lumen-lang.lumen-lang

Or search for "Lumen" in the Extensions view (ensure you are using a registry that includes Open VSX if not using official VS Code).

Features:

• Syntax highlighting
• Basic autocompletion
• Error diagnostics

Other Editors

Lumen has a Tree-sitter grammar at tree-sitter-lumen/ that can be used with:

• Neovim (via nvim-treesitter)
• Helix
• Emacs (via tree-sitter)

WASM Support

For browser/edge deployment:

# Install wasm-pack
cargo install wasm-pack

# Build for browser
cd rust/lumen-wasm
wasm-pack build --target web

See the Wasm Guide for details.

Next Steps

• Quick Start
• Your First Program